Wireless Electricity II

This simple circuit will transmit electric power at a distance of more than 15 cm. It uses a blocking oscillator (joule thief) with a pancake coil. It can transmit up to 19 volts and a maximum current of about 400 mA.

Here you can see the original version by Slayer 2732:http://www.getlinkyoutube.com/watch?v=dSUGXCWIVoI